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某750 kV输电线路部分段走径于天水地区滑坡区段,区域滑坡类型主要以黄土滑坡和黄土-泥岩接触面滑坡为主,最易滑坡坡度在20°~39°之间,占全部滑坡的72.3%;滑坡的形成原因主要有地质构造、地震作用、岩性特征、地形地貌、水文气象条件和人类活动等多个方面;通过分析地区滑坡特征,采取滑带土进行室内试验,分析滑带土物理力学性质,进行典型滑坡的稳定性分析与评价。
A section of a 750 kV transmission line goes through the landslide section in Tianshui area. The main types of landslides are landslides with loess landslides and loess-mudstone contact surfaces, and the easiest slopes are between 20 ° and 39 °, accounting for the total landslide 72.3%. The reason of the landslide is mainly composed of geological structure, earthquake action, lithology, topography, hydro-meteorological conditions and human activities. By analyzing the characteristics of landslides in the area, taking the landslide soil for indoor test, Soil physical and mechanical properties, the stability of a typical landslide analysis and evaluation.